The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 702 GMC V-12 powered '62 GMC 1-ton

cayoterun · 11-29-2007, 09:26 PM

The only new parts I put on the motor were both distributor caps , rotors, propane diaphrams in carbs, and gaskets/w a used head.
I did that for braggin' rights on behalf of their durability.
Today, it got new coils, points, & condensers. I didn't put any themostats in it, hooked up a garden hose, ran another hose from water pump out door. Circulated clean water thru it for about three hrs. Lots of rust and junk came out.
I have 10-30 oil in it, thinking that might go thru oil passages better. They normally run 15-50 in them. I don't plan to wind it up much for awhile, then change to heavy oil. Timed it with a light, and the longer it ran the smoother and quieter it got. The right front bank has about quit smoking.
Keep thinkin' on those open motor projects.

Fuel consumption: It used about 5 gallons of propane in about 3hr run time. I guess it takes fuel for fire & smoke, tho.
Thanks,
Cayoterun

11-29-2007, 09:26 PM	#134
cayoterun Junior Member Join Date: Dec 2006 Location: Guymon, Oklahoma Posts: 2,040	Re: GMC V-12 powered '91 Chev crewcab The only new parts I put on the motor were both distributor caps , rotors, propane diaphrams in carbs, and gaskets/w a used head. I did that for braggin' rights on behalf of their durability. Today, it got new coils, points, & condensers. I didn't put any themostats in it, hooked up a garden hose, ran another hose from water pump out door. Circulated clean water thru it for about three hrs. Lots of rust and junk came out. I have 10-30 oil in it, thinking that might go thru oil passages better. They normally run 15-50 in them. I don't plan to wind it up much for awhile, then change to heavy oil. Timed it with a light, and the longer it ran the smoother and quieter it got. The right front bank has about quit smoking. Keep thinkin' on those open motor projects. Fuel consumption: It used about 5 gallons of propane in about 3hr run time. I guess it takes fuel for fire & smoke, tho. Thanks, Cayoterun __________________ Cayoterun Okla. Panhandle I think I'll do it myself and pay the extra $500. Last edited by cayoterun; 11-29-2007 at 09:35 PM.